The latest version of Webkit just came out yesterday, and I must say it is truly incredible. The scrolling issue on most websites that caused it has doubled and now makes buying the rMBP totally worth it. In my opinion, this was the biggest flaw of this Machine, but with the new Webkit, this issue seems to be fixed. On my FaceBook page, I was getting sub 20 FPS sometimes even lower, but with this new WebKit, I'm getting over 50 FPS. Any others download it yet? If so, please post your comments/thoughts.

Edit: Probably a placebo effect, but pages feel like they're loading faster in comparison. Overall scrolling performance is noticeably smoother This is good news, I hope Apple implements this build soon